EP0080262A1 - Kugelgelenk - Google Patents
Kugelgelenk Download PDFInfo
- Publication number
- EP0080262A1 EP0080262A1 EP82305433A EP82305433A EP0080262A1 EP 0080262 A1 EP0080262 A1 EP 0080262A1 EP 82305433 A EP82305433 A EP 82305433A EP 82305433 A EP82305433 A EP 82305433A EP 0080262 A1 EP0080262 A1 EP 0080262A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ball
- socket
- screw head
- cup
- bearing cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
Definitions
- This invention relates to ball and socket joints, e.g. for motor vehicle steering linkages.
- a known ball and socket joint comprises a cup-shaped socket formed from a tubular member, a bearing cup located in the socket and a ball pin, the ball of which is mounted for rotation in the bearing cup and the shank of which extends through the mouth of the socket, and the base of the socket is formed by a screw head.
- a joint will hereinafter be called a joint of the kind referred to and an example is shown in GB 1 344 878.
- tubular socket is pressed onto the screw head to compressively load the bearing cup therebetween to a predetermined degree, and the tubular socket is then swaged over the screw head to lock the socket in position on the screw head.
- the preload bearing establishes a desired torque resistance for movement of the ball in the bearing cup.
- the torque load is applied to the joint during assembly of the socket onto the screw head and the only control to the amount of preload on the ball is that applied by assembly apparatus, i.e. the assembly machines are set to exert a controlled load on the bearing during assembly of the joint.
- the present invention provides a joint of the kind referred in which the bearing cup exerts a preload on the ball and in which any preload is not directly applied by loading the bearing cup between the socket housing and the screw head.
- the tubular socket member has an internal shoulder for abutment with the screw head, and an end portion which is deformed around the screw head to lock the screw head between the shoulder and said end portion.
- An advantage of this type of construction is that the ball of the ball pin can be matched with a given cavity size in the bearing cup to achieve the desired torque load on the ball.
- the internal shoulder on the tubular member then prevents any assembly load being exerted on the bearing cup when the end portion of the tubular member is deformed around the screw head. This ensures that the torque loads exerted by the selected bearing cup on the ball are more predictable.
- the joint has a screw head 11 having a threaded stud 12 thereon for attachment to a vehicle steering rack (not shown).
- An alternative connection with the steering rack would be a screw threaded cavity.
- the external surface of the screw head 11 has flats 13 thereon for the application of a spanner when screwing the joint onto a rack.
- the screw head 11 has an end face 14 thereon which provides a seat for a bearing cup 15.
- the ball pin 16 has a ball 17 and a shank 18.
- the ball 17 is mounted for rotation in the bearing cup 15 which supports the ball on both sides of its equator E-E, and the shank 18 extends through the mouth of the cup.
- the bearing cup 15 is illustrated as a one piece snap over bearing moulded from Nylon 6, 66, or acetal resin, or alternatively could possibly be made from a two part cup.
- the bearing cup 15 is located in a cup shaped socket 10 formed from a screw head 11 and a tubular housing 21 having a spherically shaped mouth 23 which co-operates with a like surface on the exterior of the bearing cup to retain it in the surround.
- the shank 18 projects through the mouth 23 of the surround and the other end portion 22 of the housing 21 has an internal shoulder which is level with the bottom face 20 on the base of the bearing cup 18.
- the shoulder 19 and bottom face 20 present a continuous face when the ball pin and cup 15 are assembled in the tubular housing 21.
- the end face 14 of the screw head 11 abuts the so formed continuous face to hold the bearing cup in place and the end portion 22 is deformed around the screw head to clinch the shoulder 19 hard against the end face 14.
- the torque control load exerted on the ball 17 of the ball pin is due to the match between the size of the bearing cup 15, the ball 17, and the tubular housing 21.
- the bearing cup 15 is made slightly oversize for the defined space between the housing and ball in which it is to be located so as to exert the desired control load on the ball.
- the shoulder 19 prevents any compressive loads from being applied to the bearing cup 15 when the housing 21 is fitted over the screw head 11 and therefore the torque control load on the ball 17 is not governed by assembly process parameters.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8131731 | 1981-10-21 | ||
GB8131731 | 1981-10-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0080262A1 true EP0080262A1 (de) | 1983-06-01 |
Family
ID=10525303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82305433A Withdrawn EP0080262A1 (de) | 1981-10-21 | 1982-10-13 | Kugelgelenk |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0080262A1 (de) |
JP (1) | JPS5870516U (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0497513A1 (de) * | 1991-01-31 | 1992-08-05 | Trw Inc. | Gelenk für eine Zahnstangenlenkungseinheit |
WO2006133693A2 (de) * | 2005-06-17 | 2006-12-21 | Zf Friedrichshafen Ag | Kugelgelenk |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2214577A1 (de) * | 1971-03-29 | 1972-10-05 | Cam Gears Ltd., Hitchin, Hertfordshire (Grossbritannien) | Fahrzeuglenkung |
GB1344878A (en) * | 1970-05-04 | 1974-01-23 | Trw Inc | Steering assemblies |
FR2432645A1 (fr) * | 1978-08-03 | 1980-02-29 | Perrier Jean | Liaison mecanique a rotule |
FR2444192A2 (fr) * | 1978-12-13 | 1980-07-11 | Perrier Jean | Liaison mecanique a rotule |
-
1982
- 1982-10-13 EP EP82305433A patent/EP0080262A1/de not_active Withdrawn
- 1982-10-19 JP JP15818482U patent/JPS5870516U/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1344878A (en) * | 1970-05-04 | 1974-01-23 | Trw Inc | Steering assemblies |
DE2214577A1 (de) * | 1971-03-29 | 1972-10-05 | Cam Gears Ltd., Hitchin, Hertfordshire (Grossbritannien) | Fahrzeuglenkung |
FR2432645A1 (fr) * | 1978-08-03 | 1980-02-29 | Perrier Jean | Liaison mecanique a rotule |
FR2444192A2 (fr) * | 1978-12-13 | 1980-07-11 | Perrier Jean | Liaison mecanique a rotule |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0497513A1 (de) * | 1991-01-31 | 1992-08-05 | Trw Inc. | Gelenk für eine Zahnstangenlenkungseinheit |
WO2006133693A2 (de) * | 2005-06-17 | 2006-12-21 | Zf Friedrichshafen Ag | Kugelgelenk |
WO2006133693A3 (de) * | 2005-06-17 | 2007-03-01 | Zahnradfabrik Friedrichshafen | Kugelgelenk |
US7771136B2 (en) | 2005-06-17 | 2010-08-10 | Zf Friedrichshafen Ag | Ball and socket joint |
CN101218441B (zh) * | 2005-06-17 | 2012-12-05 | Zf腓特烈港股份公司 | 球头节 |
Also Published As
Publication number | Publication date |
---|---|
JPS5870516U (ja) | 1983-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): BE DE FR GB IT SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19840413 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LIDSTONE, PAUL FREDERICK Inventor name: STOTT, ALAN VERNON |